Anaphylaxis Specialists in Ignou, Delhi

Anaphylaxis is a severe, rapid-onset, and potentially life-threatening allergic reaction that involves multiple body systems simultaneously, requiring immediate…

What is Anaphylaxis?

Anaphylaxis is a severe, rapid-onset, and potentially life-threatening allergic reaction that involves multiple body systems simultaneously, requiring immediate emergency treatment. It occurs when the immune system releases a flood of chemicals in response to an allergen, causing the body to go into a state of shock, with symptoms typically developing within minutes of exposure. Common triggers include certain foods, insect stings, medications, and latex, though the exact trigger cannot always be identified. Without prompt treatment with epinephrine, anaphylaxis can rapidly progress to cause airway obstruction, cardiovascular collapse, and death.

Severity

Severe

Prevalence

Rare — affects an estimated 0.05-2% of the population, with rising incidence

Contagious

Causes of Anaphylaxis

Triggered by exposure to an allergen the immune system has previously become sensitized to, most commonly certain foods like peanuts and shellfish, insect stings, medications such as antibiotics, or latex. The immune system releases a massive amount of histamine and other chemicals throughout the body upon re-exposure, causing widespread blood vessel dilation and airway constriction.

Symptoms of Anaphylaxis

Sudden onset of hives or widespread rash, swelling of the face, lips, tongue, or throat, difficulty breathing or wheezing, rapid or weak pulse, dizziness or fainting, nausea and vomiting, sense of impending doom, dangerously low blood pressure, loss of consciousness in severe cases

Treatment & Types of Anaphylaxis in Ignou, Delhi

Immediate injection of epinephrine is the essential first-line treatment to reverse the life-threatening symptoms of anaphylaxis, followed by emergency medical care and observation as symptoms can recur. Antihistamines and corticosteroids may be given as supportive treatment, but epinephrine remains the only medication proven to reverse the airway and cardiovascular effects.

Anaphylaxis is classified by trigger — food-induced, insect-sting-induced, drug-induced, latex-induced, and idiopathic (no identifiable trigger) — and by course, distinguishing a typical single-phase reaction from biphasic anaphylaxis, where symptoms return hours after the initial reaction appears to have resolved, which is why monitoring after treatment is important.

Allergy & Immunology Specialists in Ignou, Delhi (0)

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Frequently Asked Questions

Can anaphylaxis happen the first time I'm exposed to something?

Usually not — it typically requires prior sensitization to the allergen, but reactions can become more severe with repeated exposures.

Is an epinephrine auto-injector always necessary after a severe allergic reaction?

Yes, anyone diagnosed with anaphylaxis should carry one at all times, since epinephrine is the only medication proven to reverse the dangerous airway and cardiovascular effects.

Can symptoms come back after the first reaction seems to improve?

Yes, this is called a biphasic reaction and can occur hours later, which is why observation in a medical setting after anaphylaxis is recommended.

How do I find out what caused my reaction?

An allergist can perform specific allergy testing to help identify the trigger so it can be strictly avoided going forward.

Are antihistamines enough to treat anaphylaxis?

No, antihistamines only provide supportive relief — epinephrine remains the essential first-line treatment for reversing the reaction.

Learn more about Anaphylaxis (symptoms, causes, treatment)

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